<template>
  <ul class="todo-list">
    <!-- completed: 完成的类名 -->
    <li :class="{completed: obj.isDone}" 
    v-for="obj in arr" :key="obj.id" >
      <div class="view">
        <input class="toggle" 
        type="checkbox" 
        v-model="obj.isDone"/>
        <label>{{ obj.name }}</label>
        <button class="destroy" @click="delFn(obj.id)"></button>
      </div>
    </li>
  </ul>
  
</template>

<script>
export default {
  props:['arr'],
  methods:{
    delFn(id) {
      this.$emit('del',id)
    }
  }
}
</script>